EP 0908268 A2 19990414 - Threading machine coolant system and method of cooling
Title (en)
Threading machine coolant system and method of cooling
Title (de)
Kühlsystem für Gewindeschneidmaschine und Verfahren zum Kühlen
Title (fr)
Système réfrigérant pour machine à fileter et procédé de refroidissement
Publication
Application
Priority
US 94477597 A 19971006
Abstract (en)
The power driven pipe threading machine is provided with a coolant system by which an oil free, glycol based coolant is dispensed onto the workpiece (w) during thread cutting in the area thereof adjacent a thread cutting die (38) at a rate which provides for the coolant to completely evaporate and for the workpiece (w) to be cooled to a temperature which provides a good quality thread. The coolant is pumped from a reservoir (58) to a coolant outlet (66) on the die head (36) of the machine and through a needle valve (64) by which the discharge rate is adjustable, and a torque responsive shutt-off valve (62) is associated with the die head (36) for controlling the flow of coolant from the reservoir (58) to the needle valve (64) and coolant outlet (66) in response to initial threading engagement between the workpiece (w) and cutting dies (38) on the die head (36).
IPC 1-7
IPC 8 full level
B23B 5/16 (2006.01); B23G 1/22 (2006.01); B23G 1/44 (2006.01); B23Q 11/10 (2006.01)
CPC (source: EP US)
B23B 5/165 (2013.01 - EP US); B23G 1/22 (2013.01 - EP US); B23Q 11/1038 (2013.01 - EP US); Y10T 82/10 (2015.01 - EP US); Y10T 82/20 (2015.01 - EP US); Y10T 408/44 (2015.01 - EP US)
Designated contracting state (EPC)
DE ES GB IT
DOCDB simple family (publication)
US 5826469 A 19981027; CA 2235055 A1 19990406; CA 2235055 C 20011211; CN 1109595 C 20030528; CN 1213597 A 19990414; CN 1445054 A 20031001; CN 1445055 A 20031001; DE 69819102 D1 20031127; DE 69819102 T2 20040624; EP 0908268 A2 19990414; EP 0908268 A3 20000927; EP 0908268 B1 20031022; ES 2209093 T3 20040616; JP H11165215 A 19990622; TW 408055 B 20001011
DOCDB simple family (application)
US 94477597 A 19971006; CA 2235055 A 19980513; CN 03107686 A 20030326; CN 03107687 A 20030326; CN 98118548 A 19980901; DE 69819102 T 19980904; EP 98630049 A 19980904; ES 98630049 T 19980904; JP 24692598 A 19980901; TW 87114976 A 19980909